codereview.cfg: add Missed this when creating the repo. Change-Id: Ib30ae8c06a0afc8bb0d67a68d4dc716e66f3dbc8 Reviewed-on: https://go-review.googlesource.com/c/xerrors/+/176458 Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>